<template>
  <view  class="goods-detail-container">
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <swiper-item v-for="(item,i) in goods_info.value.pics" :key="i" >
        <view class="swiper-item">
          <image  :src="item.pics_big" mode="widthFix" @click="preview(i)"></image>
        </view>
      </swiper-item>
    </swiper>
  
  

  <view class="goods-info-box">
    <view class="price" >￥{{goods_info.value.goods_price}}</view>
    <view class="goods-info-body">
      <view class="goods-name">{{goods_info.value.goods_name}}</view>
      <view class="favi">
        <uni-icons type="star" size="18" color="gray"></uni-icons>
        <text>收藏</text>
      </view>
    </view>
    <view class="yf">快递：免运费  </view>
  </view>
  
  <rich-text :nodes="goods_info.value.goods_introduce"></rich-text>
  <view class="goods_nav">
    <uni-goods-nav :fill="true" :options="options" :button-group="buttonGroup" @click="onClick" @buttonClick="buttonClick" />
  </view>
  </view>
</template>

<script setup>
import {moduleCart} from '../../store/cart.js'
import { reactive, watch } from "vue";
import {onLoad,onReachBottom,onPullDownRefresh} from '@dcloudio/uni-app'
  const cartList=moduleCart()
  const goods_info=reactive({
    value:[]
  })
  const options=reactive([
    {
      icon:'shop',
      text:'店铺'
    },
    {
      icon: 'cart',
            text: '购物车',
            info: 0
    }
  ])
  const buttonGroup=reactive([
    {
            text: '加入购物车',
            backgroundColor: '#ff0000',
            color: '#fff'
          },
          {
            text: '立即购买',
            backgroundColor: '#ffa200',
            color: '#fff'
          }
  ])
  
  onLoad((params)=>{
    const goods_id=params.goods_id
    getGoodsDetail(goods_id)
  })
  
  const getGoodsDetail=async(goods_id)=>{
    const { data: res } = await uni.$http.get('/api/public/v1/goods/detail', { goods_id })
        if (res.meta.status !== 200) return uni.$showMsg()
        res.message.goods_introduce=res.message.goods_introduce.replace(/<img /g, '<img style="display:block;" ').replace(/webp/g, 'jpg')
        goods_info.value= res.message
  }
  
  const preview=(i)=>{
    uni.previewImage({
      current:i,
      urls:goods_info.value.pics.map(x=>x.pics_big)
    })
  }
  
  const onClick=(e)=>{
    if (e.content.text === '购物车') {
      uni.switchTab({
        url: '/pages/cart/cart'
      })
    }
  }
  
  const buttonClick=(e)=>{
    if (e.content.text==='加入购物车'){
      const goods={
         goods_id: goods_info.value.goods_id,       // 商品的Id
        goods_name: goods_info.value.goods_name,   // 商品的名称
        goods_price: goods_info.value.goods_price, // 商品的价格
        goods_count: 1,                           // 商品的数量
        goods_small_logo: goods_info.value.goods_small_logo, // 商品的图片
        goods_state: true 
      }
      uni.showToast({
        title:'加入成功',
        duration:600
      })
      cartList.addToCart(goods)
    }
  }
  
  watch(()=>cartList.total,(newVal,oldVal)=>{
    const findResult=options.find((x)=>x.text==='购物车')
    if(findResult){
      findResult.info=newVal
    }
  },{immediate:true})
</script>

<style lang="scss">
swiper{
  height: 750rpx;
  image{
    width: 100%;
    
  }
}
.goods-info-box {
  padding: 10px;
  padding-right: 0;

  .price {
    color: #c00000;
    font-size: 18px;
    margin: 10px 0;
  }

  .goods-info-body {
    display: flex;
    justify-content: space-between;

    .goods-name {
      font-size: 13px;
      padding-right: 10px;
    }
    .favi {
      width: 120px;
      font-size: 12px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      border-left: 1px solid #efefef;
      color: gray;
    }
  }

  .yf {
    margin: 10px 0;
    font-size: 12px;
    color: gray;
  }
}
.goods-detail-container {
  padding-bottom: 50px;
}
.goods_nav{
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
}
</style>
